Abstract
There are several methods of estimating local recoverable reserves which can be used when the data are dense relative to the geostatistical structure. It is shown that the weight assigned to the mean in a simple kriging of the panel to be estimated can be used to judge whether the data are dense enough. For panels where the data are not dense enough, the results given by most non-linear methods are strongly attracted toward the overall mean, which is unsatisfactory unless the deposit is globally stationary.
One way of overcoming this disadvantage when one wants to estimate panel grades is to add universality conditions, but this is not appropriate when estimating the distribution of block grades inside a panel. In this case the estimated panel grade can be used to condition the block grade distribution.
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© 1987 D. Reidel Publishing Company, Dordrecht, Holland
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Remacre, A.Z. (1987). Conditioning by the Panel Grade for Recovery Estimation of Non-Homogeneous Orebodies. In: Matheron, G., Armstrong, M. (eds) Geostatistical Case Studies. Quantitative Geology and Geostatistics, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3383-5_8
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DOI: https://doi.org/10.1007/978-94-009-3383-5_8
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